https://sourceware.org/bugzilla/show_bug.cgi?id=24039
--- Comment #1 from mhsec <tfx_sec at hotmail dot com> --- I use latest binutils with debug info. crash output show as follow. binutils/nm-new -C POC ================================================================= ==9029==ERROR: AddressSanitizer: heap-buffer-overflow on address 0xf3bfea80 at pc 0x083ba887 bp 0xffabcac8 sp 0xffabcac0 WRITE of size 4 at 0xf3bfea80 thread T0 #0 0x83ba886 in demangle_template ./binutils-gdb/libiberty/./cplus-dem.c:2249:23 #1 0x83b8c2e in demangle_signature ./binutils-gdb/libiberty/./cplus-dem.c:1709:18 #2 0x83b62da in internal_cplus_demangle ./binutils-gdb/libiberty/./cplus-dem.c:1258:14 #3 0x83b5143 in cplus_demangle ./binutils-gdb/libiberty/./cplus-dem.c:919:9 #4 0x815d092 in bfd_demangle ./binutils-gdb/bfd/bfd.c:2254:9 #5 0x81460a0 in print_symname ./binutils-gdb/binutils/nm.c:423:19 #6 0x8145035 in print_symbol_info_bsd ./binutils-gdb/binutils/nm.c:1565:3 #7 0x8149d87 in print_symbol ./binutils-gdb/binutils/nm.c:903:3 #8 0x8148828 in print_symbols ./binutils-gdb/binutils/nm.c:1102:7 #9 0x8146fdb in display_rel_file ./binutils-gdb/binutils/nm.c:1215:5 #10 0x8144a11 in display_file ./binutils-gdb/binutils/nm.c:1335:7 #11 0x814424f in main ./binutils-gdb/binutils/nm.c:1816:12 #12 0xf7d3f636 in __libc_start_main (/lib/i386-linux-gnu/libc.so.6+0x18636) #13 0x806be08 in _start (./binutils-gdb/binutils/nm-new+0x806be08) 0xf3bfea80 is located 0 bytes to the right of 251581056-byte region [0xe4c11800,0xf3bfea80) allocated by thread T0 here: #0 0x8112215 in malloc asan_malloc_linux.cc:146:3 #1 0x83e6659 in xmalloc ./binutils-gdb/libiberty/./xmalloc.c:147:12 #2 0x83b8c2e in demangle_signature ./binutils-gdb/libiberty/./cplus-dem.c:1709:18 #3 0x83b62da in internal_cplus_demangle ./binutils-gdb/libiberty/./cplus-dem.c:1258:14 #4 0x83b5143 in cplus_demangle ./binutils-gdb/libiberty/./cplus-dem.c:919:9 #5 0x815d092 in bfd_demangle ./binutils-gdb/bfd/bfd.c:2254:9 SUMMARY: AddressSanitizer: heap-buffer-overflow ./binutils-gdb/libiberty/./cplus-dem.c:2249:23 in demangle_template Shadow bytes around the buggy address: 0x3e77fd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x3e77fd10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x3e77fd20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x3e77fd30: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 0x3e77fd40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 =>0x3e77fd50:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x3e77fd60: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x3e77fd70: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x3e77fd80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x3e77fd90: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa 0x3e77fda0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa Shadow byte legend (one shadow byte represents 8 application bytes): Addressable: 00 Partially addressable: 01 02 03 04 05 06 07 Heap left redzone: fa Freed heap region: fd Stack left redzone: f1 Stack mid redzone: f2 Stack right redzone: f3 Stack after return: f5 Stack use after scope: f8 Global redzone: f9 Global init order: f6 Poisoned by user: f7 Container overflow: fc Array cookie: ac Intra object redzone: bb ASan internal: fe Left alloca redzone: ca Right alloca redzone: cb Shadow gap: cc ==9029==ABORTING -- You are receiving this mail because: You are on the CC list for the bug. _______________________________________________ bug-binutils mailing list bug-binutils@gnu.org https://lists.gnu.org/mailman/listinfo/bug-binutils